AIC6166 Regulatory USB High-Side Power Switch FEATURES DESCRIPTION • 150mΩ (6V Input) High-Side MOSFET Switch z z The AIC6166 is a power switch IC integrated a 0.62A/1.25A Continuous Load Current of USB low dropout linear regulator for bus-powered switch Universal Serial Bus (USB) applications. 140μA Typical On-State Supply Current of USB The high-side switch of USB power switch is switch MOSFET with 150m Ω RDS(ON), which meets 0.75μA Typical Off-State Supply Current of USB USB voltage drop requirements for maximum switch transmission wire length. Fault Flag with 8ms filter eliminates false Multi-purpose assertions indicates Under voltage Lockout Ensures that Switch is off shutdown, or undervoltage lockout. The output at Start Up current of USB power switch is typical limited to USB Switch Output can be Forced Higher than 0.62A / 1.25A (control by select pin). USB Switch Input (Off-State) Guaranteed minimum output rise time limits z Open-Drain Fault Flag inrush current during hot plug-in as well as z Slow Turn ON and Fast Turn OFF minimizing EMI and prevents the voltage at z Control Active-High or Active-Low z Constant Current Limit / Short Circuit Protection. z Thermal Shutdown Protection (latching) z Available in SOP-8 (Exposed Pad) Package z z z z open-drain over-current fault flag limiting, output thermal upstream port from dropping excessively. APPLICATIONS z USB Power Management. z Hot Plug-In Power Supplies. z Battery-Charger Circuit. Analog Integrations Corporation Si-Soft Research Center DS-6166G-03 20100511 3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C. TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw 1 AIC6166 TYPICAL APPLICATION CIRCUIT ON OFF 1 2 10K V cc :+6V 1μF 3 4 8 CTL GND FLG ISET USBIN USBOUT USBIN USBOUT 7 6 V US B :+5V 5 + 22μF 2.2μF AIC6166 ORDERING INFORMATION AIC6166X-XXXXXX PACKING TYPE TR: TAPE & REEL TB: TUBE PACKAGING TYPE R8: SOP-8 Exposed Pad (Heat Sink) G: Green Package PIN CONFIGURATION SOP-8 Exposed Pad (Heat Sink) TOP VIEW CTL 1 8 FLG 2 7 GND ISET 6 USBOUT 5 USBOUT USBIN 3 USBIN 4 GND CONTROL POLARITY 0: Active Low 1: Active High Fault Flag Response Delay Time D: Delay 8ms Example: AIC6166D-0GR8TR Æ With Fault Flag Response Delay Time, Active Low Version, in SOP-8 Exposed Pad (Heat Sink) Green Package & Taping & Reel Packing Type 2 AIC6166 ABSOLUTE MAXIMUM RATINGS USB Power Switch Supply Voltage (VUSBIN) 7.0V Fault Flag Voltage (VFLG) 7.0V Fault Flag Current (IFLG) 50mA Control Input (VCTL, VENLDO) -0.3V ~7V -40°C~85°C Operating Temperature Range 150°C Junction Temperature -65°C ~ 150°C Storage Temperature Range 260°C Lead Temperature (Soldering, 10sec) SOP8 Exposed Pad* 15°C/W Thermal Resistance Junction to Ambient SOP8 Exposed Pad* 60°C/W Thermal Resistance Junction to Case (Assume no ambient airflow) Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. * The package is placed on a two layers PCB with 2 ounces copper and 2 square inch, connected by 8 vias. 3 AIC6166 ELECTRICAL CHARACTERISTICS (CUSBIN = 1μF, CUSBOUT = 2.2μF, VUSBIN= 6V, TA=25°C, unless otherwise specified.) (Note 1) PARAMETERS CONDITIONS MIN. TYP. MAX. UNIT 0.75 5 μA 140 190 μA USB POWER SWITCH Control Active High, USB switch output OFF, USBOUT=Open Control Active Low, USB switch Supply Current output OFF, USBOUT=Open Control Active High, USB switch output ON, USBOUT=Open Control Active Low, USB switch output ON, USBOUT=Open Control Active High, USB switch output ON Control Active Low, USB switch Control Input Threshold 2.4 V output OFF Control Active High, USB switch output OFF Control Active Low, USB switch 0.8 V 7 V 100 nA output ON USB Input Voltage VUSBIN Control Input Current VCTL =VUSBIN or GND 5.3 0 Control Input Capacitance 1 PF Dropout Voltage VUSBOUT = 5V, IUSBOUT = 0.5A 90 190 mV Dropout Voltage VUSBOUT = 5V, IUSBOUT = 1A 280 380 mV 2.2 3.2 mS 3.8 7 mS Output Turn-On Rise Delay RL = 10Ω Output Turn-On Rise Time RL = 10Ω Output Turn-Off Delay RL = 10Ω 0.8 20 μS Output Turn-Off Fall Time RL = 10Ω 0.7 20 μS 10 μA 2 Output Leakage Current Current Limit Threshold ISET > 2.4V 0.5 0.62 0.75 A Current Limit Threshold ISET < 0.8V 1.0 1.25 1.5 A 3 8 12 mS 10 25 Ω 0.01 1 μA Over Current Flag Response Delay Apply VOUT = 0V until FLG low Error Flag Output Resistance VUSBIN = 6V, IL =10 mA Error Flag Off Current VFLG = 5V 4 AIC6166 Undervoltage Lockout Threshold VUSBIN rising Undervoltage Lockout Hysteresis 2.2 2.6 3 200 V mV Thermal Protection Thermal Shutdown Temperature (Note 2 ) 135 ℃ Note 1: Specifications are production tested at TA=25°C. Specifications over the -40°C to 85°C operating temperature range are assured by design, characterization and correlation with Statistical Quality Controls (SQC). The AIC6166 requires minimum CUSBIN = 0.8μF and CUSBOUT = 1μF to maintain stability. For best performance, typically use CUSBIN = 1μF, CUSBOUT = 2.2μF (ceramic) + 22μF (aluminum). Note 2: When thermal shutdown, the IC performs the function of latching in OFF state. It can resume operation by turning off once (min. 1uS) and then turn on using the CTL pin (with Typ. 25℃ Thermal Shutdown Hysteresis), or by restoring power to the USBIN pin. 5 AIC6166 TYPICAL PERFORMANCE CHARACTERISTICS Fig. 1 Quiescent Current VS Input Voltage Fig. 3 Shut-down Current VS Temperature Fig. 5 Enable Threshold Voltage VS Input Voltage Fig. 2 Quiescent Current VS Temperature Fig. 4 UVLO Threshold Voltage VS Temperature Fig. 6 Rising Time VS Input Voltage 6 AIC6166 TYPICAL PERFORMANCE CHARACTERISTICS Fig. 7 Rising Time VS Temperature Fig. 9 Flag Delay Time VS Temperature Fig. 8 Flag Delay Time VS Input Voltage Fig. 10 Current Limit VS Input Voltage Fig. 11 Current Limit VS Temperature 7 AIC6166 TYPICAL PERFORMANCE CHARACTERISTICS VIN=6V CTL RL=10Ω CTL COUT=0μF VIN=6V RL=10Ω COUT=2.2μF VOUT VOUT Fig. 12 Turn-On Time Fig. 13 Turn-Off Time VIN=6V IOUT VIN VOUT Flag VOUT Fig. 14 UVLO Protection Fig. 15 Current Limit Event (Iset=GND) VIN=6V IOUT IOUT VOUT VIN=6V COUT=2.2uF VOUT Ripple Flag Fig. 16 Current Limit Event (Iset=Vin) IOUT=1mA~1A Fig. 17 Load Transition 8 AIC6166 BLOCK DIAGRAM PIN DESCRIPTIONS PIN 1: CTL PIN 2: FLG - Controls the turn-on/turn-off of USB power switch with TTL as a control input. Active high for AIC6166-1 and active low for AIC6166-0. PIN 4: USBIN - USB power supply input pin. PIN 5: USBOUT - USB switch output. PIN 6: USBOUT - USB switch output. - An active-low and open-drained fault flag output. FLG is an indicator for current limit when CTL is active. In normal mode operation (CTL is active), it also can indicate thermal shutdown. PIN 7: ISET - Current limit setting pin. Connect to GND for 1.25A current limit. Connect to USBIN for 0.62A current limit PIN 8: GND - Chip power ground. PIN 3: USBIN - USB power supply input pin. 9 AIC6166 APPLICATION INFORMATION z Error Flag control circuitry. An error Flag is an open-drained output of an z Transient Requirements N-channel MOSFET. FLG output is pulled low to signal the following fault conditions: output current limit and thermal shutdown. The Fault Flag response delay time is 8ms. USB supports dynamic attachment (hot plug-in) of peripherals. A current surge is caused by the input capacitance of downstream device. Ferrite beads are recommended in series with all power and ground connector pins. Ferrite beads reduce EMI and limit the z Current Limit inrush current during hot-attachment by filtering The current limit threshold is preset internally. It high-frequency signals. protects the output MOSFET switches from damage resulting from undesirable short circuit conditions or z Output Capacitance excess inrush current, which is often encountered Linear regulators require output capacitors to maintain during hot plug-in. The error flag signals when any stability and transient response. A 2.2μF output current limit conditions occur. capacitor can satisfy most AIC6166 applications. For getting better load transient, a 4.7μF output capacitor z Thermal Shutdown is recommended. When temperature of AIC6166 exceeds 150°C for any reasons, the thermal shutdown function turns the MOSFET switch off and signals the error flag. When thermal shutdown, the IC performs the function of latching in OFF state. It can resume operation by turning off once (min. 1μS) and then turn on using the CTL pin, or by restoring power to the USBIN pin. z Dropout Voltage The dropout voltage is defined as the difference between input voltage and output voltage at which the output voltage drops 100mV. Below this value, the output voltage will fall while the input voltage reduces. It depends on the load current and junction temperature. z Supply Filtering A 1μF bypass capacitor from USBIN to GND, located z Printed Circuit Layout near the device, is strongly recommended to control The power circuitry of USB printed circuit boards supply transients. Without a bypass capacitor, an requires a customized layout to maximize thermal output short may cause sufficient ringing on the input dissipation and to minimize voltage drop and EMI. (from supply lead inductance) to damage internal 10 AIC6166 PHYSICAL DIMENSIONS (unit: mm) z SOP-8 Exposed Pad (Heat Sink) D D1 EXPOSED THERMAL PAD(Heat Sink) (BOTTOM CENTER OF PACKAGE) S Y M B O L h X 45° E A A SEE VIEW B A e H E1 WITH PLATING C A1 MILLIMETERS MIN. MAX. A 1.35 1.75 A1 0.00 0.15 B 0.31 0.51 C 0.17 0.25 D 4.80 5.00 E 3.80 e B 0.25 BASE METAL SECTION A-A 4.00 1.27 BSC H 5.80 6.20 h 0.25 0.50 L 0.40 1.27 q 0° 8° D1 1.5 3.5 E1 1.0 2.55 GAUGE PLANE SEATING PLANE θ L VIEW B SOP-8 Exposed Pad(Heat Sink) Note : 1. Refer to JEDEC MS-012E. 2. Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs shall not exceed 6 mil per side . 3. Dimension "E" does not include inter-lead flash or protrusions. 4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact. Note: Information provided by AIC is believed to be accurate and reliable. However, we cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AIC product; nor for any infringement of patents or other rights of third parties that may result from its use. We reserve the right to change the circuitry and specifications without notice. Life Support Policy: AIC does not authorize any AIC product for use in life support devices and/or systems. Life support devices or systems are devices or systems which, (I) are intended for surgical implant into the body or (ii) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 11